在未经训练的妇女中,经过非常短期的单边异动力学前臂延伸和曲训练后,早期阶段和跨教育适应
Justin S Pioske1, Jocelyn E Arnett2, Dolores G Ortega1
1Department of Nutrition and Health Science, University of Nebraska-Lincoln, Lincoln, NE 68520, USA.
Muscles (Basel, Switzerland)
|February 20, 2026
概括
这项研究表明,在女性中,3-4天的前臂训练改善了力量和力量. 然而,训练一只手臂并没有增强未经训练的手臂,这表明在短时间内没有交叉教育效应.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 早期的训练适应对于理解运动的初始生理反应至关重要.
- 单边培训可能会产生反边效应 (交叉培训),但时间过程和条件尚未完全理解.
- 异动力学动力测量是评估肌肉力量和功率适应性的可靠方法.
研究的目的:
- 在未受过训练的女性中,确定平均峰值扭矩 (APT),速度发展率 (RVD) 和平均功率 (AP) 的早期阶段适应的时间过程,这些适应是在非常短期的单边,反向,同心的异动运动前臂训练之后.
- 调查非主导手臂的训练是否会在主导的非训练手臂中引发跨教育的适应.
主要方法:
- 12名未受过培训的女性在四天内接受了四次测试和四次培训.
- 在60°·s-1,180°·s-1和300°·s-1时进行前臂延伸和曲的异动力学测试.
- 训练包括6组10次最大重复在180°·s-1与非主导的手臂.
主要成果:
- 经过训练的手臂在3-4天的训练后显示出APT和AP的显著增加.
- 在四次训练后,RVD在更高的速度 (180°·s-1和300°·s-1) 下降.
- 在非训练 (主导) 臂中没有观察到APT或AP的显著变化,这表明没有交叉教育效应.
结论:
- 非常短期 (3-4天) 的异动力训练可以在未经训练的女性中引起早期的力量和力量适应.
- 单侧前臂训练在这个短时间的训练期间没有在对侧四肢中引起可观察到的交叉教育效应.
- 这些发现强调了当地适应的快速开始,但在这种特定的培训环境中没有早期的抵押利益.
更多相关视频
05:28Author Spotlight: Enhancing Upper Limb Rehabilitation in Stroke Patients Through Advanced Robotic and Neuromodulation Technologies
Published on: October 11, 2024
1.2K
10:08Effects of a Novel Neuromuscular Training Intervention on Jump, Sprint, and Change of Direction in Adult Female Soccer Players
Published on: June 10, 2025
1.4K
相关概念视频
01:09Changes in the Appendicular Skeleton with Age
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
01:20Normal Strain under Axial Loading
Normal strain under axial loading is an important concept in the field of mechanics of materials. Axial loading implies the application of a force along the axis of a material, like a column or bar. This force can either compress or stretch the material. In the context of axial loading, normal strain is the deformation experienced by the material in the direction of the loading force. It's calculated as the change in length divided by the original length of the material. This unitless ratio...
01:11Deformation of Member under Multiple Loadings
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...